/**
 *    Copyright (c) 2014-2019 CK.
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */
package com.github.fartherp.framework.common.validate;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import java.util.Arrays;

/**
 * Created by IntelliJ IDEA.
 *
 * @author CK
 * @date 2019/1/7
 */
public class ValueValidator implements ConstraintValidator<Value, Object> {

    private String[] values;

	@Override
    public void initialize(Value constraintAnnotation) {
        this.values = constraintAnnotation.values();
        Arrays.sort(this.values);
    }

	@Override
    public boolean isValid(Object value, ConstraintValidatorContext context) {
		if (value == null) {
			return true;
		}
        return Arrays.binarySearch(values, value.toString()) >= 0;
    }
}
